ICD-10-CM 2027
ICD-10 code for neuritis
From the official ICD-10-CM alphabetic index entry “Neuritis (rheumatoid)”. Page updated September 29, 2026.
About coding neuritis
The ICD-10-CM code for neuritis is M79.2 (Neuralgia and neuritis, unspecified). The official index lists 57 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on M79.2.
Within M79, choose M79.2 (Neuralgia and neuritis, unspecified) only when documentation doesn't support a more specific option: rheumatism, unspecified (M79.0), myalgia (M79.1), panniculitis, unspecified (M79.3), hypertrophy of (infrapatellar) fat pad (M79.4), residual foreign body in soft tissue (M79.5), pain in limb, hand, foot, fingers and toes (M79.6), Fibromyalgia (M79.7), other specified soft tissue disorders (M79.8) and 2 more.
Don't report M79.2 together with the conditions in its Excludes1 note: brachial radiculitis NOS (M54.1), lumbosacral radiculitis NOS (M54.1), mononeuropathies (G56-G58), radiculitis NOS (M54.1) and 1 more.
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
More specific neuritis codes (official index)
- abducens (nerve)
- accessory (nerve) G52.8 — Disorders of other specified cranial nerves
- acoustic (nerve) H93.3 — Disorders of acoustic nerve
- in (due to)
- infectious disease NEC B99 — Other and unspecified infectious diseases
- parasitic disease NEC B89 — Unspecified parasitic disease
- syphilitic A52.15 — Late syphilitic neuropathy
- alcoholic G62.1 — Alcoholic polyneuropathy
- with psychosis
- amyloid, any site E85.4 — Organ-limited amyloidosis
- auditory (nerve)
- brachial
- due to displacement, intervertebral disc
- cranial nerve
- due to Lyme disease A69.22 — Other neurologic disorders in Lyme disease
- eighth or acoustic or auditory
- eleventh or accessory G52.8 — Disorders of other specified cranial nerves
- fifth or trigeminal G50 — Disorders of trigeminal nerve
- first or olfactory G52.0 — Disorders of olfactory nerve
- fourth or trochlear
- second or optic
- seventh or facial G51.8 — Other disorders of facial nerve
- newborn (birth injury) P11.3 — Birth injury to facial nerve
- sixth or abducent
- tenth or vagus G52.2 — Disorders of vagus nerve
- third or oculomotor
- twelfth or hypoglossal G52.3 — Disorders of hypoglossal nerve
- Déjérine-Sottas G60.0 — Hereditary motor and sensory neuropathy
- diabetic (mononeuropathy)
- polyneuropathy
- due to
- beriberi E51.11 — Dry beriberi
- displacement, prolapse or rupture, intervertebral disc
- herniation, nucleus pulposus M51.9 — Unspecified thoracic, thoracolumbar and lumbosacral intervertebral disc disorder
- endemic E51.11 — Dry beriberi
- facial G51.8 — Other disorders of facial nerve
- newborn (birth injury) P11.3 — Birth injury to facial nerve
- general
- geniculate ganglion G51.1 — Geniculate ganglionitis
- due to herpes (zoster) B02.21 — Postherpetic geniculate ganglionitis
- gouty M10.9 — Gout, unspecified
- hypoglossal (nerve) G52.3 — Disorders of hypoglossal nerve
- ilioinguinal (nerve) G57.9 — Unspecified mononeuropathy of lower limb
- infectious (multiple) NEC G61.0 — Guillain-Barre syndrome
- interstitial hypertrophic progressive G60.0 — Hereditary motor and sensory neuropathy
- lumbar M54.16 — Radiculopathy, lumbar region
- lumbosacral M54.17 — Radiculopathy, lumbosacral region
- multiple
- endemic E51.11 — Dry beriberi
- infective, acute G61.0 — Guillain-Barre syndrome
- multiplex endemica E51.11 — Dry beriberi
- nerve root
- oculomotor (nerve)
- olfactory nerve G52.0 — Disorders of olfactory nerve
- optic (nerve) (hereditary) (sympathetic) H46.9 — Unspecified optic neuritis
- with demyelination G36.0 — Neuromyelitis optica [Devic]
- in myelitis G36.0 — Neuromyelitis optica [Devic]
- nutritional H46.2 — Nutritional optic neuropathy
- papillitis
- retrobulbar H46.1 — Retrobulbar neuritis
- specified type NEC H46.8 — Other optic neuritis
- toxic H46.3 — Toxic optic neuropathy
- peripheral (nerve) G62.9 — Polyneuropathy, unspecified
- multiple
- single
- pneumogastric (nerve) G52.2 — Disorders of vagus nerve
- postherpetic, postzoster B02.29 — Other postherpetic nervous system involvement
- progressive hypertrophic interstitial G60.0 — Hereditary motor and sensory neuropathy
- retrobulbar
- in (due to)
- late syphilis A52.15 — Late syphilitic neuropathy
- meningococcal infection A39.82 — Meningococcal retrobulbar neuritis
- meningococcal A39.82 — Meningococcal retrobulbar neuritis
- syphilitic A52.15 — Late syphilitic neuropathy
- sciatic (nerve)
- due to displacement of intervertebral disc
- serum T80.69 — Other serum reaction due to other serum
- shoulder-girdle G54.5 — Neuralgic amyotrophy
- specified nerve NEC G58.8 — Other specified mononeuropathies
- spinal (nerve) root
- syphilitic A52.15 — Late syphilitic neuropathy
- thenar (median) G56.1 — Other lesions of median nerve
- thoracic M54.14 — Radiculopathy, thoracic region
- toxic NEC G62.2 — Polyneuropathy due to other toxic agents
- trochlear (nerve)
- vagus (nerve) G52.2 — Disorders of vagus nerve
Don't confuse with (Excludes1 for M79.2)
Common questions about neuritis ICD-10 codes
What is the ICD-10 code for neuritis?
- M79.2 — Neuralgia and neuritis, unspecified. More specific codes apply when the documentation supports them: G52.8, H93.3, B99, B89 and others below.
What is the ICD-10 code for accessory neuritis?
- G52.8 — Disorders of other specified cranial nerves.
What is the ICD-10 code for acoustic neuritis?
- H93.3 — Disorders of acoustic nerve (header code; choose a more specific subcode).
What is the ICD-10 code for alcoholic neuritis?
- G62.1 — Alcoholic polyneuropathy.
What is the ICD-10 code for déjérine-sottas neuritis?
- G60.0 — Hereditary motor and sensory neuropathy.
What is the ICD-10 code for endemic neuritis?
- E51.11 — Dry beriberi.
What is the ICD-10 code for facial neuritis?
- G51.8 — Other disorders of facial nerve.
Is M79.2 billable?
- Yes. M79.2 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can M79.2 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict M79.2 as a principal diagnosis.
Is M79.2 a CC or MCC?
- No. M79.2 is neither a CC nor an MCC under MS-DRG v44.0.